Custom formulation, our core expertise

Our formulators create exclusive formulas, natural or organic, with the right texture and demonstrated efficacy. From concept to a stabilised, compliant formula, ready for production.

  • Natural & organic
  • Innovative textures
  • EU 1223/2009 compliant
  • Exclusive formulas
Weighing a formula at the Costomise laboratory
01Your challenge

The balance of a formula

Between the intended effect, the sensory feel, stability over time, ingredient cost and regulatory compliance, a cosmetic formula is a demanding balance. We take finding it with you to heart: twenty years at the bench have taught us where to look, and above all what to avoid.

  • You have a concept but not the formula
  • You want natural without giving up texture
  • You have a target ingredient cost to meet
  • You have an existing formula that needs to be made reliable
02Our answer

Formulas designed to be manufactured

At the lab in Marans
  1. 01

    Creative formulation

    Innovative textures, refined sensory profiles, actives chosen for a real, demonstrable benefit.

  2. 02

    Natural & organic

    Sourcing of natural and organic actives, with formulas compatible with the market's leading standards.

  3. 03

    Testing & stability

    Stability, packaging compatibility and challenge testing: a formula that holds up over time.

  4. 04

    Built-in compliance

    Controlled claims and a regulatory file prepared from the formulation stage, not as an afterthought.

03Our know-how

Our formulation types

We master the full range of formulation types to meet very different needs, from the most classic skincare to the most innovative formats. Six families, from face care to innovative formats: here is what we develop.

01

Face care

  • Serums
  • Creams & balms
  • Lotions & essences
  • Masks
  • Facial oils
02

Body care

  • Body milks
  • Massage oils
  • Balms & butters
  • Scrubs
  • Hand & foot care
03

Hair care

  • Shampoos
  • Conditioners
  • Hair masks
  • Hair oils
  • Leave-in treatments
04

Hygiene

  • Shower gels
  • Soaps
  • Deodorants
  • Toothpastes
  • Intimate hygiene
05

Colour cosmetics

  • Foundations
  • Glosses
  • Tinted products
06

Innovative formats

  • Solid cosmetics
  • Powders to reconstitute
  • Bi-phase formulas
  • Jellies
  • Hybrid textures
Formulation is our home ground. The right balance between texture, efficacy and naturalness cannot be improvised: it is worked out at the bench.
Julien R., co-founder
04How it works

Our formulation method

01
Scoping

Product brief

Expected benefit, target sensory profile, natural or organic positioning, ingredient cost and constraints.

02
Iterative

First trials

We prepare and submit samples based on your brief, in our laboratory.

03
Until you say yes

Refinement

We adjust texture, fragrance and performance until you approve the formula.

04
Validation

Stabilisation

Stability, compatibility and safety testing: the formula is ready for industrial scale-up.

05Our work

2 case studies

+20%sales above launch targets

Innovative organic anti-ageing serum

Challenge

A 100% natural anti-ageing formula with a light texture and demonstrable efficacy.

Solution

A proven formula combining peptide actives, ferments and precious oils.

Result

A successful launch, with sales 20% above target.

CosmosOrganic certification achieved

Solid hair care range

Challenge

A complete range of zero-waste solid hair care products with a generous lather.

Solution

Development of gentle plant-based surfactants and a sulfate-free formulation.

Result

Cosmos Organic certification achieved, with rapid uptake by the eco-conscious market.

06Our support

What we do for you

We create your formula
  • Research and selection of actives
  • Sourcing of natural and organic raw materials
  • Preparation and submission of samples
  • An exclusive, confidential formula
We make it safe
  • Stability and packaging compatibility testing
  • Toxicological assessment
We make it compliant
  • Compilation of the PIF (Regulation 1223/2009)
  • Review of claims and labelling
Your formula: your questions

What types of formulas?

Skincare, hygiene, hair care, solid, waterless and more.

Natural or organic?

Yes, with guidance towards the right certifications.

How long does development take?

It depends on the complexity of the format and the testing - scoped with you from the start.

Every formula is a case of its own. Describe the product you have in mind and we will scope the development with you.

Get my quote
07Why us

Our formulation experience

20 yearsat the formulation bench
100%made in France
6 familiesof formulation types, from skincare to solids
Until you say yesiterations on samples, as many as it takes
08Your questions

Frequently asked questions

Do you work with 100% natural and organic formulas?

Yes, it is our favourite territory. We formulate natural and/or organic products and favour responsible sourcing, with short supply chains where possible.

Can you take over an existing formula?

Yes. We can strengthen, optimise or bring into compliance a formula you provide.

Does the formula remain my property?

Yes. Every formula developed for you is exclusive and confidential.

Do you handle regulatory testing?

Yes: stability, compatibility, safety assessment, PIF and claims review. Your formula is compliant before it goes into production.

What types of products do you formulate?

Face and body care, hygiene, hair care, fragrances and mists, solid or waterless cosmetics. If it is a cosmetic, we know how to formulate it.

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